Memory Map - HP Vectra Technical Reference Manual

APPENDIX B
B. MEMORY MAP
B.1 System Memory
Map
The system maintains ROM and RAM entry point compatibility with the industry standard. Table
8.1 provides an outline of the first megabyte of memory.
, . . Table 8.1
Memory Map
Starting Absolute
Description Address Begin
End
Interrupt Vectors
OOOO:OOOOH OOOOOH 003FFH
STD-BIOS Data Area
0040:0000H 00400H 0051DH
Scratch
0050:001EH 0051EH 005FFH
Bios Stack
0060:0000H
00600H 006FFH
DOS
0070:0000H 00700H
Application
OCOO:OO50H OCOSOH nF800H
EX-BIOS System RAM
nF800H nFFFFH
n is dependent upon the amount of memory installed.
The EX-BIOS takes a minimum of 800 hex bytes.
Max RAM Equal 256KB
OOOOOH 3FFFFH
Max RAM Equal 640KB
OOaaaH 9FFFFH
Boot Address
07CO:OOOOH 07COOH
Memory Map 349